(19)
(11) EP 2 237 465 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.02.2012 Bulletin 2012/06

(43) Date of publication A2:
06.10.2010 Bulletin 2010/40

(21) Application number: 10169722.5

(22) Date of filing: 01.02.2006
(51) International Patent Classification (IPC): 
H04L 25/02(2006.01)
H04L 5/00(2006.01)
 H04L 1/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 17.02.2005 US 61958

(62) Application number of the earlier application in accordance with Art. 76 EPC:
06707969.9 / 1854256

(71) Applicant: Sony Corporation
Tokyo 108-0075 (JP)

(72) Inventors:
  • Darwood, Peter
    Bristol BS7 8LT (GB)
  • Ponnampalam, Vishakan
    Bristol BS6 7NY (GB)
  • Jones, Alan
    Wiltshire SN11 9QY (GB)

(74) Representative: DeVile, Jonathan Mark 
D Young & Co LLP 120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) Selection of training sequences in a multiple-in multiple-out (MIMO) communication system


(57) A cellular communication system comprises a Multiple-In Multiple-Out, MIMO, transmitter (101) and receiver (103). The MIMO transmitter (101) comprises a message generator (303) for generating MIMO messages comprising selected training sequences and transceivers (305, 307, 309) transmitting the messages on a plurality of antennas (311, 313, 315). The training sequences are selected by a midamble selector (317) from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with the cell of the MIMO transmitter and comprises disjoint subsets of training sequences for each of the plurality of antennas. The receiver (103) comprises a transmit antenna detector (419) which determines which antenna of the MIMO transmitter the message is transmitted from in response to the training sequence of the received message.







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